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package com.oracle.truffle.llvm.runtime.nodes.func;

import com.oracle.truffle.api.frame.FrameDescriptor;
import com.oracle.truffle.api.nodes.ExecutionSignature;
import com.oracle.truffle.api.nodes.RootNode;
import com.oracle.truffle.llvm.runtime.LLVMContext;
import com.oracle.truffle.llvm.runtime.LLVMLanguage;
import com.oracle.truffle.llvm.runtime.memory.LLVMStack.LLVMStackAccess;

public abstract class LLVMRootNode extends RootNode {

    protected final LLVMStackAccess stackAccess;

    public LLVMRootNode(LLVMLanguage language, FrameDescriptor frameDescriptor, LLVMStackAccess stackAccess) {
        super(language, frameDescriptor);
        this.stackAccess = stackAccess;
    }

    public final LLVMStackAccess getStackAccess() {
        return stackAccess;
    }

    @Override
    public String getName() {
        return '<' + getClass().getSimpleName() + '>';
    }

    @Override
    protected ExecutionSignature prepareForAOT() {
        // stackAccess is not a child node, thus we have to prepare it manually. Consider
        stackAccess.prepareForAOT(getLanguage(LLVMLanguage.class), this);
        return null;
    }

    public final LLVMContext getContext() {
        return LLVMContext.get(this);
    }
}
